Home / 431,275.60-646,913.40-194,731.60

Finding the Fourth Proportional to 431,275.60, 646,913.40 and 194,731.60

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Solution

The fourth proportional to 431,275.60, 646,913.40 and 194,731.60 is: 292,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,275.60 : 646,913.40 = 194,731.60 : x
  2. Step 2: Convert to fraction form
    431,275.60/646,913.40 = 194,731.60/x
  3. Step 3: Cross multiply
    431,275.60x = 646,913.40 × 194,731.60
  4. Step 4: Simplify right side
    431,275.60x = 125,974,481,443.44
  5. Step 5: Solve for x
    x = 125,974,481,443.44/431,275.60
  6. Step 6: Final answer
    x = 292,097.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.